A Quebec freight train derailment in December points to a broken rail likely snapped by extreme cold and stress from a prior wheel issue — despite a recent inspection finding nothing wrong. Though no injuries occurred and most cargo stayed off the frozen river, the track’s 47 broken-rail incidents in 2025 — many in winter — reveal a troubling pattern. The Transportation Safety Board is still investigating, but the case underscores how unpredictable infrastructure failures can be — even with routine checks — and why extreme weather demands smarter, proactive maintenance.

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